crash/0089-gdb-7.6-fix-for-whatis-command-causes-crash-coredump.patch

From 8986cceb699a27c720b42a9b2456f8e19d5422cd Mon Sep 17 00:00:00 2001
From: Lianbo Jiang <lijiang@redhat.com>
Date: Mon, 8 May 2023 17:05:49 +0800
Subject: [PATCH 89/89] gdb-7.6: fix for whatis command causes crash coredump

8ecb59f85679 ("Print non-Ada unions without crashing")
* cp-abi.c (value_rtti_type): Check HAVE_CPLUS_STRUCT.

This is a RHEL-Only patch.

Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
---
 gdb-7.6.patch | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/gdb-7.6.patch b/gdb-7.6.patch
index d0becd055666..f25f5f159e50 100644
--- a/gdb-7.6.patch
+++ b/gdb-7.6.patch
@@ -2601,3 +2601,15 @@ diff -up gdb-7.6/opcodes/configure.orig gdb-7.6/opcodes/configure
 
    /* If the nearest symbol is too far away, don't print anything symbolic.  */
 
+--- gdb-7.6/gdb/cp-abi.c.orig
++++ gdb-7.6/gdb/cp-abi.c
+@@ -113,7 +113,8 @@ value_rtti_type (struct value *v, int *full,
+   struct type *ret = NULL;
+   volatile struct gdb_exception e;
+
+-  if ((current_cp_abi.rtti_type) == NULL)
++  if ((current_cp_abi.rtti_type) == NULL ||
++               !HAVE_CPLUS_STRUCT (check_typedef (value_type (v))))
+     return NULL;
+   TRY_CATCH (e, RETURN_MASK_ERROR)
+     {
-- 
2.37.1